1.49 Cr39 Sunglasses Optical Lenses 71*1.8/2.0*4c/5c/8c

• Customization: Available
• Usage: Lighting, Medical, Optical
• Type: Convex Lens
• Transmittance: >95%
• Shape: Ball, Hemisphere
• Material: Cr-39
• Lenses Color: Clear
• Certification: ISO9001, CE
• Customized: Customized
• Coating: HMC
• Power Range: Sph 0.00~-6.00,+0.25~+8.00,Cyl 0.00~-6.00
• Coating Color: Green,Blue
• Specific Gravity: 1.32
• Abbe Value: 58
• Transport Package: White Envelopes or as Customers" Requirement
• Specification: 72/70/65mm
• Trademark: BORIS
• Origin: Danyang, Jiangsu, China
• HS Code: 900150
• Production Capacity: 20000PCS/Day

Product Description

The dyeing lenses
With the rapid development of glasses science and technology, resin glasses with its light, safety, light transmittance close to optical glass and other advantages into the consumer market of glasses, and more and more varieties, never hard to hard; From low refractive index to medium refraction to high refraction; Never change color to dye, and even develop to change color.
The dyed lens is made by soaking the resin lens in hot water dissolved with organic pigment to make the lens colored. The shades of color can be controlled to a standard level, and can be dyed a consistent color throughout the lens, or can be gradually changing colors.

The dye is dispersed in a certain proportion into the solvent (dyeing solution), and the lens is immersed in the dyeing solution at a certain speed and frequency through the dyeing device, and the dye gradually penetrates into the lens matrix to make the lens color darker. The typical molecular structure of a dye is shown in the figure below. It can be seen that the structure contains various chromophore groups, which have strong absorption in a specific range of the visible spectrum, resulting in various colors. Under suitable process parameters, lenses can obtain a specific uniform color, also known as solid color, dyeing depth or gradient dyeing depth.






BORIS OPTICAL

 is one of the most Potential Finished and Semi-Finished Optical Lenses factory located in Danyang City, China. It was establish in 2012 with covering 20000 spm and 150 employees. The annual production and sales of lenses are 30 million pieces, and the annual sales have exceeded 100 million for five consecutive years.
Our Key & Advantage Products:
Single Vision Lens:1.49;1.56;1.59;1.60;1.67;1.74
Bifocal Lens: 1.49; 1.56
Progressive Lens: CR-39; 1.56; 1.60
Functional Lens: Blue Cut, Photochromic; Photochromic +UV420 Blue cut; Sunglasses; Polarized; Polycarbonate
RX Service: Free Form; Special Coating; Special Power Range

FAQ

1. Could you provide samples?

Of course, free samples can be sent to you, but please help us pay the freight fee.

2. What Certification do you have for your optical lens?

FDA, CE, ISO9001 certification is available.

3. What is the MOQ of optical lens?

We dont have Min Order quantity requirement. But if the quantity order is too small, we have to charge extra delivery fee.

4. Could you provide OEM service?

Sure, just send us your requirements.